填入适当的词补全句子。

1. — _____________ is your dress? 

    — Red.

2. — _____________ is it? 

    — It's Liu Tao's.

3. — _____________ birds can you see? 

    — Five.

4. — _____________ is my jacket? 

    — It's on the bed.

5. — _____________ is that woman? 

    — She's my mother.

6. — _____________ you have a canteen? 

    — Yes.

7. — _____________ are you? 

    — Fine, thank you.

8. — _____________ are these?

    — They're socks.

下列哪项对中心静脉压的影响最小

A．肺动脉楔压

B．静脉回心血量

C．静脉血管张力

D．右心室排血能力

E．血容量